Difference between revisions of "Berlman Isadore"
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by Isadore B. Berlman | by Isadore B. Berlman | ||
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| + | Isadore B. Berlman was born in St. Louis MO. USA, January 13, 1922. Berlman completed his A.B. degree in Meteorology at NYU through the US Army. He served 3<math>\tfrac{1}{2}</math> years in the US Air Force as a Meteorologist (1943-1946). He completed his MA in Physics(1946-1948) and his Ph.D. in Nuclear Physics (1948-1950) both at Washington University, St. Louis MO. | ||
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1950-1970 worked at Argonne National Laboratory in the Radiological Physics Branch researching organic scintillation solutions.Being a nuclear physicist he saw the advantages of building radiation detectors using aromatic compounds. | 1950-1970 worked at Argonne National Laboratory in the Radiological Physics Branch researching organic scintillation solutions.Being a nuclear physicist he saw the advantages of building radiation detectors using aromatic compounds. | ||
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One comment concerns my book “Handbook of Fluorescence Spectra of Aromatic Molecules”[1] second edition (1970). I believe that the fluorescence decay times recorded therein are very accurate even though they are in the nanosec range. This was possible as I chose a digital technique instead of an analogue one. My assistant Orville Steingraber designed and built the system as described in our article.[2] | One comment concerns my book “Handbook of Fluorescence Spectra of Aromatic Molecules”[1] second edition (1970). I believe that the fluorescence decay times recorded therein are very accurate even though they are in the nanosec range. This was possible as I chose a digital technique instead of an analogue one. My assistant Orville Steingraber designed and built the system as described in our article.[2] | ||
| − | When Prof. Förster visited my laboratory at the Argonne National Lab and saw the equipment in operation he said something like, “that’s the way how to measure fluorescence decay times”. As far as I remember everyone else was working in the microsec range. | + | When Prof. Förster ([[Förster Theodor]]) visited my laboratory at the Argonne National Lab and saw the equipment in operation he said something like, “that’s the way how to measure fluorescence decay times”. As far as I remember everyone else was working in the microsec range. |
At that time, the digital technique began to be used in other fields such as photography, etc. | At that time, the digital technique began to be used in other fields such as photography, etc. | ||
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My final comment is the most difficult. It concerns my second book, “Energy Transfer Parameters of Aromatic Compounds” Academic Press 1973. There is a high probability that the data is faulty. My problem now arises from the fact that as I am 95 years old and my memory is failing. Examples of memory loss have been as follows: recently some-one sent me the following reprint [5]. | My final comment is the most difficult. It concerns my second book, “Energy Transfer Parameters of Aromatic Compounds” Academic Press 1973. There is a high probability that the data is faulty. My problem now arises from the fact that as I am 95 years old and my memory is failing. Examples of memory loss have been as follows: recently some-one sent me the following reprint [5]. | ||
Not only did I not remember being involved with ”fulvenes”, I also forgot that Richter was a graduate student of mine. | Not only did I not remember being involved with ”fulvenes”, I also forgot that Richter was a graduate student of mine. | ||
| − | Regarding the book, I believe that results there may be wrong. My memory tells me that around 1970-73 I was interested in finding a formula that gives a value for the transfer distance between 2 molecules where the absorption spectrum of one of them overlaps the emission spectrum of the second one. I seem to remember such a formula appeared in an article written by J. Birks ([[Birks John Betteley]]) and someone else. To my chagrin when I examined the formula more closely, I concluded that it was faulty. Therefore, I decided to wait until they published a correction but I have not seen such a correction. Forgetting this I went ahead and used this formula. Years later I realized my mistake but did not know how to correct this. Moreover, I was surprised to learn that I had not referenced this article. I tried to find the original article on the internet but to no avail. On the other hand | + | Regarding the book, I believe that results there may be wrong. My memory tells me that around 1970-73 I was interested in finding a formula that gives a value for the transfer distance between 2 molecules where the absorption spectrum of one of them overlaps the emission spectrum of the second one. I seem to remember such a formula appeared in an article written by J. Birks ([[Birks John Betteley]]) and someone else. To my chagrin when I examined the formula more closely, I concluded that it was faulty. Therefore, I decided to wait until they published a correction but I have not seen such a correction. Forgetting this I went ahead and used this formula. Years later I realized my mistake but did not know how to correct this. Moreover, I was surprised to learn that I had not referenced this article. I tried to find the original article on the internet but to no avail. On the other hand … there is a formula in the Introduction (page 68 of Energy Transfer Parameters of Aromatic Compounds I.B. Berlman) which I apparently used, it looks like a standard formula found in many articles on energy transfer. If there is nothing wrong with this formula, the data in the book should be correct. At my age, I am not in the position to verify this. |
Finally, if the data is incorrect and has caused any harm, I apologize. | Finally, if the data is incorrect and has caused any harm, I apologize. | ||
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[1] Berlman, Isadore. Handbook of florescence spectra of aromatic molecules. Elsevier, 2012. | [1] Berlman, Isadore. Handbook of florescence spectra of aromatic molecules. Elsevier, 2012. | ||
| − | [2] O.J. Steingraber and I.B Berlman Rev. Sci. Instr. 34, 524 (1963). | + | [2] O. J. Steingraber and I.B Berlman Rev. Sci. Instr. 34, 524 (1963). |
http://www.sciencedirect.com/science/article/pii/0029554X73903522 | http://www.sciencedirect.com/science/article/pii/0029554X73903522 | ||
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[5] Solvent effects on the absorption of fluorescence spectra of Diphe-nyltriafulvenes. “3 Modes of Dipole Moment Variation upon Excitation”. Y Richter, I B Berlman and I Agranat. Chem. Phys. Letters 49 238 1977. http://www.sciencedirect.com/science/article/pii/0009261477805770 | [5] Solvent effects on the absorption of fluorescence spectra of Diphe-nyltriafulvenes. “3 Modes of Dipole Moment Variation upon Excitation”. Y Richter, I B Berlman and I Agranat. Chem. Phys. Letters 49 238 1977. http://www.sciencedirect.com/science/article/pii/0009261477805770 | ||
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Latest revision as of 06:46, 29 November 2018
by Isadore B. Berlman
