Difference between revisions of "March 21, 2017 - Radio-isotope test"
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2. How well do you need to know the mean energy of #1 (not energy spread), just mean energy? | 2. How well do you need to know the mean energy of #1 (not energy spread), just mean energy? | ||
− | 20keV | + | :'''20keV''' |
3. Is energy spread an issue, and if yes - is this value similar to #2? | 3. Is energy spread an issue, and if yes - is this value similar to #2? | ||
− | Yes. | + | :'''Yes.''' |
4. What is the beam spot size or aspect ratio you would like to have at the radiator, and if a limit is important or a range is desired, please say so? | 4. What is the beam spot size or aspect ratio you would like to have at the radiator, and if a limit is important or a range is desired, please say so? | ||
− | Under 3x3 mm sigma | + | :'''Under 3x3 mm sigma''' |
5. How well do you need to know the beam size, aspect or profile, maybe this is an issue for your diagnostics? | 5. How well do you need to know the beam size, aspect or profile, maybe this is an issue for your diagnostics? | ||
− | Accuracy of beam size and stability about 1 mm | + | :'''Accuracy of beam size and stability about 1 mm''' |
6. How precisely do you need to set the beam position at the radiator, how will you do this? | 6. How precisely do you need to set the beam position at the radiator, how will you do this? | ||
− | 1 mm, use the beam profile scanner just upstream | + | :'''1 mm, use the beam profile scanner just upstream''' |
7. How much position jitter or instability is acceptable, this might be an important point? | 7. How much position jitter or instability is acceptable, this might be an important point? | ||
− | 3x3 mm | + | :'''3x3 mm''' |
8. What is the beam intensity you will use at the energies in #1, is this cw or peak? | 8. What is the beam intensity you will use at the energies in #1, is this cw or peak? | ||
− | 50 uA CW | + | :'''50 uA CW''' |
9. Are there limits on how much beam or beam intensity can be used when setting up on the radiator, e.g. limit so not to contribute to your result? | 9. Are there limits on how much beam or beam intensity can be used when setting up on the radiator, e.g. limit so not to contribute to your result? | ||
− | Pulsed beam if possible, at a reasonable intensity | + | :'''Pulsed beam if possible, at a reasonable intensity''' |
10. What else? | 10. What else? | ||
− | None | + | :'''None''' |
Revision as of 12:49, 21 March 2017
Beam requirements
1. What energy or energy range do you want (is this total, kinetic), and if a range what step size or resolution is practically useful?
- We'd like to have kinetic energy at least 18 MeV, and under 18.5 MeV (18.5 preferable), with a resolution (sigma) of at least 20 keV.
media:170321_radioisotopeenergies.xlsx
2. How well do you need to know the mean energy of #1 (not energy spread), just mean energy?
- 20keV
3. Is energy spread an issue, and if yes - is this value similar to #2?
- Yes.
4. What is the beam spot size or aspect ratio you would like to have at the radiator, and if a limit is important or a range is desired, please say so?
- Under 3x3 mm sigma
5. How well do you need to know the beam size, aspect or profile, maybe this is an issue for your diagnostics?
- Accuracy of beam size and stability about 1 mm
6. How precisely do you need to set the beam position at the radiator, how will you do this?
- 1 mm, use the beam profile scanner just upstream
7. How much position jitter or instability is acceptable, this might be an important point?
- 3x3 mm
8. What is the beam intensity you will use at the energies in #1, is this cw or peak?
- 50 uA CW
9. Are there limits on how much beam or beam intensity can be used when setting up on the radiator, e.g. limit so not to contribute to your result?
- Pulsed beam if possible, at a reasonable intensity
10. What else?
- None